Follow up #14449: fix OCI trigger

[Zerpet]

Proposed Changes

Follow up to #14449. The trigger is still wrong. I tested locally with act and now it's behaving as expected:
external users without access to secrets do not trigger OCI builds.

Types of Changes

What types of changes does your code introduce to this project?
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• Bug fix (non-breaking change which fixes issue #NNNN)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause an observable behavior change in existing systems)
• Documentation improvements (corrections, new content, etc)
• Cosmetic change (whitespace, formatting, etc)
• Build system and/or CI

Checklist

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You can also fill these out after creating the PR.
This is simply a reminder of what we are going to look for before merging your code.

• Mandatory: I (or my employer/client) have have signed the CA (see https://github.com/rabbitmq/cla)
• I have read the CONTRIBUTING.md document
• I have added tests that prove my fix is effective or that my feature works
• All tests pass locally with my changes
• If relevant, I have added necessary documentation to https://github.com/rabbitmq/rabbitmq-website
• If relevant, I have added this change to the first version(s) in release-notes that I expect to introduce it

[michaelklishin]

@Mergifyio backport v4.2.x

[mergify]

backport v4.2.x

❌ No backport have been created

Details

• Backport to branch v4.2.x failed

GitHub error: Branch not found